Classifications

• • C—CHEMISTRY; METALLURGY
  • C14—SKINS; HIDES; PELTS; LEATHER
  • C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
  • C14C9/00—Impregnating leather for preserving, waterproofing, making resistant to heat or similar purposes
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L93/00—Compositions of natural resins; Compositions of derivatives thereof
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09G—POLISHING COMPOSITIONS; SKI WAXES
  • C09G1/00—Polishing compositions
  • C09G1/04—Aqueous dispersions

Definitions

• the invention relates to emulsions for water-repellent impregnation of leather, fabrics and fabrics.
• an impregnation emulsion which contains about 1 to 15% by weight of fat phase, 1 to 30% by weight of terpene solvent, about 0.1 to 10% by weight of one or more substances having a molecular weight ⁇ 140, selected from the group Rosin, shellac, damar resin, stearin and the fatty acids and fatty acid mixtures formed during the saponification of the above fatty phases and resins, and water.
• This composition enables a stable emulsion without the addition of synthetically produced surfactants over a long period of time. It is also suitable for the treatment of cotton fabrics, wool fabrics, blended fabrics, linen and jute.
• Drying or non-drying vegetable and animal fats and oils are used as the fat phase.
• vegetable and animal fats and oils are used as the fat phase.
• Talc such as beef, mutton, goat and deer chalk, tears, and fat-like substances such as lanolin, paraffin, petroleum jelly and / or waxes such as beeswax are also suitable. Of these, lanolin, beeswax, coconut oil, jojoba oil and castor oil are preferred.
• the terpene solvents contained according to the invention facilitate the absorption of the fat phase on the fibers or the leather and also act as a preservative.
• balsamic turpentine oil, orange peel oils and / or eucalyptus penes are suitable.
• Substances with a molecular weight ⁇ 140 for example rosin, shellac, damar resin, stearin and fatty acid mixtures, such as those obtained in the saponification of the fatty phase, can be used as materials based on organic acids.
• the mixtures of the above agents can also be used; preference is given to those whose melting point is above 35 ° C., such as rosin, shellac and stearin.
• Water is contained in the emulsion in an amount of 40 to 95%, the pH of which is adjusted to 7 to 11, preferably 8 to 10.
• the emulsion can also contain hard waxes and fragrances.
• Suitable hard waxes are, for example, carnauba, candelilla, shellac and esparto wax. They can be contained in an amount of 0.1 to 10% by weight for glossing.
• Natural essential oils in particular lavender oil or bergamot oil, are suitable as fragrances.
• the constituents used in accordance with the invention give a stable emulsion which, even when washing fabrics and fabrics as part of the washing liquor, impregnates these materials. It can be used in a dilution of 1: 100 or undiluted.
• the impregnation can be carried out by applying the emulsion with a brush, sponge or cloth or by spraying the materials to be treated with the emulsion or by immersing these materials in the emulsion.
• the materials based on organic acids such as rosin, shellac or damar resin are first dissolved in turpentine oil and this mixture is stirred with the fat phase, the solution being added in small proportions to the previously warmed fat phase. Then about up to 50% of the fat phase of water is added and this mixture is left to stand for a few hours. The rest of the water phase is then worked in and the pH is adjusted.
• organic acids such as rosin, shellac or damar resin
• the emulsion obtained should (must?) Be homogenized in order to improve the degree of division and the distribution of the inner phase and to increase the stability.
• high-speed simple stirrers stirrers with rotor and stator (Ultra Turrax), colloid mills with toothed or corundum disks, homogenizers, which usually press the batch repeatedly through a nozzle, and ultrasound devices are used for this purpose.
• hard waxes are to be used to prepare the emulsions according to the invention, these can be dissolved together with the materials based on organic acids in turpentine oil.
• the fragrances mentioned are added to the liquid fat phase before the other ingredients are added.
• a cotton cloth was agitated in lukewarm water containing 5% by weight of a water-repellent impregnation according to the invention for about five minutes and then dried.
• This method of application also showed a very good water-repellent effect compared to a non-impregnated cotton flap. This is due to the essential advantage of the water-dilutability of the agents according to the invention.
• a cotton anorak was treated with the water-repellent impregnation according to the invention at a water temperature of 30 ° C. After the rinse cycle, the anorak was air-dried because the impregnation wears off after spinning. After drying, the cotton anorak showed a pronounced hydrophobic behavior.

Landscapes

• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Health & Medical Sciences (AREA)
• Medicinal Chemistry (AREA)
• Polymers & Plastics (AREA)
• General Chemical & Material Sciences (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Dispersion Chemistry (AREA)
• Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
• Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
• Treatment And Processing Of Natural Fur Or Leather (AREA)
• Fats And Perfumes (AREA)
• Cosmetics (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=6478488

Family Applications (1)

Country Status (2)

Cited By (2)

Families Citing this family (1)

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• 1993
  • 1993-01-20 DE DE19934301297 patent/DE4301297C2/de not_active Expired - Fee Related
  • 1993-11-20 EP EP93118699A patent/EP0609505A3/fr not_active Withdrawn

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